John Deere Type “E” 1-1/2 HP Stationary Engine

John Deere Type “E” 1-1/2 HP Stationary Engine

Craftsman: Dettmar Industries

Knapp Collection #: 148

Catalog #: 2008.10.46

Contributor: Paul Knapp

This is a gasoline burning stationary (hit-n’-miss) engine with a 1.8-inch bore and 2-inch stroke, enclosed crankcase, and a make-and-break ignition system.

Johnson F1 Model Outboard With .65 OS engine

Johnson F1 Model Outboard With .65 OS engine

Craftsman: AMPS

Catalog #: 2013.49.6

Contributor: Daniel "Buzz" Brunkow

Included here are a Johnson F1 with a .65 OS engine (left), an Evinrude F1 with a .45 OS engine (center), and a Mercury EFI F1 with a .45 K&B powerplant (right). 

JPX-T240 Turbojet Model Aircraft Engine

JPX-T240 Turbojet Model Aircraft Engine

Craftsman: Vibraye

Knapp Collection #: 46

Catalog #: 2009.9.05

Contributor: Paul Knapp 

By 1992, commercially available miniature jet engines like this JPX-T240 began to appear on the market. This engine burns propane fuel and can produce up to 13 pounds of thrust.

JT 1800 9-Cylinder Radial Model Airplane Engine

JT 1800 9-Cylinder Radial Model Airplane Engine

Craftsman: John V. Thompson

Knapp Collection #: 145

Catalog #: 2008.10.43

Contributor: Paul Knapp

This 9-cylinder radial engine weighs 28 pounds and has a 1.25-inch (32 mm) bore and a 1-inch (24.8 mm) stroke with a total displacement of 10.8 cu. in. (180 cc).

Jupiter 220 2-Cylinder Opposed Airplane Engine

Jupiter 220 2-Cylinder Opposed Airplane Engine

Craftsman: Farger & Joosten

Knapp Collection #: 68 

Catalog #: 2009.9.08

Contributor: Paul Knapp 

The Jupiter 220 2-cylinder opposed model airplane engine was manufactured by Farger & Joosten. The engine is 9”-long, 11”-wide, and 6”-high.  

K-35 Single-Cylinder, Two-Cycle Model Airplane Engine

K-35 Single-Cylinder, Two-Cycle Model Airplane Engine

Craftsman: Fred Kunze

Knapp Collection #: 167

Catalog #: 2008.16.24

Contributor: Paul Knapp

Fred Kunze constructed and sold 39 of his model K-35 airplane engines. The K-35 has a 13/16-inch bore, 3/4-inch stroke, and burns methanol on glow ignition.

K&B .48 Engine

K&B .48 Engine

Craftsman: K&B

Catalog #: 2012.19.8

Donor: Joe Bridi

This K&B .48 engine is a glow ignition with remote needle valve, square head. This one is #138 of 4,800 built. It has a gold anodized head and prop ring.

K&B “Ringed Piston” Prototypes

K&B “Ringed Piston” Prototypes

Craftsman: Lud Kading

Knapp Collection #: 619

Catalog #: 2019.33.17

Contributor: Paul Knapp

K&B advertised, but never actually produced a ringed .29 engine. Lud Kading built two experimental prototypes in 1947.

K&B “Twist Head” .60

K&B “Twist Head” .60

Craftsman: K&B

Catalog #: 2012.19.6

Donor: Joe Bridi

This K&B “Twist Head” .60 is a glow ignition engine from about 2002 that features a “Combo” pipe.

K&B 3.5 Model Outboard Motor

K&B 3.5 Model Outboard Motor

Craftsman: K&B

Catalog #: 2013.49.9

Contributor: Daniel "Buzz" Brunkow

Three different sized K&B model outboard motors are included in this collection. A 3.5 (red trim, left), a 7.5 (gold trim, center) and an 8.2 (Polished flywheel and gold prop, right). 

K&B 40 Model Airplane Engine

K&B 40 Model Airplane Engine

Craftsman: K&B

Catalog #: 2014.19.4

Donor: Joe Bridi

This K&B 40 model airplane engine features a tuned exhaust and some new parts in the original box.

K&B 7.5 Model Outboard Motor

K&B 7.5 Model Outboard Motor

Craftsman: K&B

Catalog #: 2013.49.10

Contributor: Daniel "Buzz" Brunkow

Three different sized K&B model outboard motors are included in this collection. A 3.5 (red trim, left), a 7.5 (gold trim, center) and an 8.2 (Polished flywheel and gold prop, right). 

K&B 8.2 Model Outboard Motor

K&B 8.2 Model Outboard Motor

Craftsman: K&B

Catalog #: 2013.49.11

Contributor: Daniel "Buzz" Brunkow

Three different sized K&B model outboard motors are included in this collection. A 3.5 (red trim, left), a 7.5 (gold trim, center) and an 8.2 (Polished flywheel and gold prop, right). 

K&B Engines – Designs of Lud Kading

K&B Engines – Designs of Lud Kading

Craftsman: Lud Kading; Display by Tim and Betty Dannels

Knapp Collection #: 616

Catalog #: 2019.33.13

Contributor: Paul Knapp

This display portrays a brief history of Lud Kading’s .020 Infant, .035 Torpedo Jr., and his .049 Torpedo engine designs.

K&B Infant 20 in Dealer’s Display Box

K&B Infant 20 in Dealer’s Display Box

Craftsman: K&B, Box by George Milano

Knapp Collection #: 617

Catalog #: 2019.33.15

Contributor: Paul Knapp

Perhaps one of the first boxes used for the K&B infant in the early 1950s is this unique die-cut box that folds into a display stand.

K&B Torpedo .24 Prototypes

K&B Torpedo .24 Prototypes

Craftsman: Lud Kading

Knapp Collection #: 618

Catalog #: 2019.33.16

Contributor: Paul Knapp

These K&B Torpedo .24 prototypes were built by Lud Kading, of CA, in 1946-’47. The engines are glow and spark ignition.

Kalfus Designed 10cc (.60ci) Tether Boat Engine

Kalfus Designed 10cc (.60ci) Tether Boat Engine

Craftsman: Ed Kalfus

Knapp Collection #: 375

Catalog #: 2013.53.5

Contributor: Paul Knapp

This 10cc (.60ci) tether boat engine is 5”-long, 3.5”-wide, 5.5”-high, and weighs 1 lb. 10 oz. The small brass carburetor in the back is set to run the engine at low speed.

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Presented by The Joe Martin Foundation for Exceptional Craftsmanship